Gasket-seating machine



' April 26, 1927. I 1,625,809

w. s. EDWARDS GASKET SEATING MACHINE Filed July 26. 1925 I venior;

Patented Apr. 26, 1927.

Uhll'lTED STATES i it I 'WTITLL1AM S. EDWARDS,OELQCKLAND OHIO.

, i ensxnge snerrno ncnrnn Application filed July 26,

Q My invention relates to a machine tor surfacing the gasket seats on the demos of tank cars. In the handling oil acids in tanlrears the gasket seat on the dome'of the car tr qtifently becomes pitted and acid-eaten and requires resurfacing before the gasket and cover can he applied so as to provide an entirely leak-proof jointior the transportation of the acid. This operationhas heretofore been accomplished by removingthe dome casting from the car dome, by taking: out the large number of rivets by means of which the parts are assembled. andremovshop where the seat is faced the casting nust be again riveted to the dome and this cannot. bedone under usual safety regulations nnti-lthe car has been entirely'cleansed and freed from acid.

all olf which. requires considerable labor, tune and. expense.

The princ pal ObJGCt; of the present invention is to provide a simple andefiicien t n1ascat may be resurfaced" without removing the casting from the dome chine whereby the of the tank. thus obviating thenecessity for removalot any rema ning; acid or fumes from the tank and expediting and ifacilitating the operation oi? resurfacing the gasketseat.

Furtherobjectsjof the inventionwill appear from the following detailed description thereof.

In the drawings: Figure 1 ls'asectionof a-inachine construc'ted in aocordancewith this invention,

the same being illustrated in position on a tank dome.

1 Figure 2 is a plan view of the machine.

' The numeral 1 ndicates a iranie which 18 substantially circular iii-plan, as shown in receive a, bOl 0,

Figure 2, said traniebeingprovided with a pluralitygo't legs. or standards 2, the same be ng four innulnber, as illustrated in the clrdwingsdThe lower end-oft each of the legs or standards 2 is bored and threaded to the lower end of wh ch has a. pointed rest 4t. Rigidly secnredon each bolt 3above the rest is a turning; nut o A look nut 6 secures the bolt and rest in dethe top off frame 1. Secured on the spindle isa'pinion 8-whichinter-meshes with a gear 9 also Journalled 111 the top of frame 1.

3. inounted on a central shaft 1" -nnder-sicle of the dome casting i.

1926. Serial No. 125,119.

Rigidly secured on the hnbiol the gear 9 is a pinion 10 which interineshes with a; gear 11 rigidly secnred on a sl t 19. jonrnalled in the top of frame 5 ,onredon the lower end of shaft 12 is ion l whichinterneshes with a geanwl cl 1.4-, rotatahly 5 which extends upwardly thrmsg h thet 1 of the frame 1. as shown. lttigidly moon :l-on the hub loot the wheelie is anarin lfcarrv ingmi adjustable tool heat 19. The head 18 may be of any standard lathe or other. t pc. the l'iead being long tndinally adjustable on the arm by ineons, oi a screw 20 in the arm 1'2". said screw, being provided with a star wheel 21 for rotation.

The shaft 15. extends downwardly soas to extend into the dome F22 of a tank caiyand the lower end is provided with a crossrm 23 which isadapted to bear against the Both the lower and npper ends of the shaft 15 are threaded for nuts and 26 res ieet-ively. The shaft 15 is slidahle with rcla .n to hub 16 of gear wheel l4 and cello] 27 and 28 respectively, secured hv set screws 29, are

provided on the shaft for. retaii'iing theparts in proper adjustment when the machine is assembledon a tank (,lOlUG. On either one of -the-legs 2 a sliding collar 30 is provided,

. portion of the frame a ring 83extends around the frame embracing the lower portions of the tour standards.

The operation of the machine is as follows: When the seat Elsi-oi? the dome casting 20 is to be re-snriaced, the device is placed upon the dome with the lower portion of shaft 15 extending downwardly into the dome. The cross-bar 23 is then assembled on the shaft; the operator reaching downwardly into the dome between the frame standards, and hronglit to bear against the under portion oi the dome casting, and secured in partially tight relation by ineans of the not the latter heing turned by thooperator hand.

i he device is then levelled in a manner similar to the levelling of a. surveyors transit, by means of the rests t-which are. as above explained, adjustable in the l8. tor a cutter standards 2, the levelling being secured by means of the lock nuts 6. The device is then finally tightened and secured to the dome by means of the nut 26 which is acces sible to a wrench. Power is then applied to the spindle 7 by means of an ordinary elec tric or pneumatic drill motor provided with a suitable standard tapered socket. Through the train of gears and pinions described, the gear wheel 14 is rotated, carrying with it the arm 17 and tool head 18, the tool 19 hearing. as will be understood, upon the gasket seat of the dome casting, as illustrated in the drawings. lVith each revolution of the arm one of the arms of the star wheel 21 is brought into cont-act with the pin 31, rotating the wheel a portion of a turn and cansing the tool to be moved either inwardly or outwardly upon the gasket seat. The direction of travel of the tool with respect to the gasket seat is accomplished either by raising or lowering the pin 31 above or below the axis of the star wheel 21, as will be understood.

By the operation of the machine as thus explained, it will be seen that the tool is caused to travel around the gasket seat and forwardly and backwardly over the same, thus properly surfacing the same. hen the operation is completed the device may be removed from the dome by loosening up on nut 26 and removing nut 25 so that the cross bar 23 can be removed from the shaft. The machine may then be lifted from the'dome, as will readily be seen.

While I have shown the machine equipped with a shank spindle so as to be adapted to receive power from a portable electric or pneumatic drill, it will readily be understood that the spindle may be provided with a pulley or other means so as to be driven by a permanent or fixed motor.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character specified. comprising a frame, a shaft centrally mounted in said frame, the lower end of said shaft being adaptedto extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, a crossbar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said cross-bar on said shaft, a tool arm rotatably mounted on said shaft, and means mounted in said frame for actuating said arm.

52. A device of the character specified, comprising a frame, a shaft centrally mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, means carried by said standards for levelling said frame with respect to said dome, a cross-bar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said crossbar on said shaft, :1 tool arm rotatably mounted on said shaft, and means mounted in said frame for actuating said arm.

3. A device of the character specified. comprisinga frame,asbaft centrally mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome. a cross-- bar arranged to be asscn'iltiled on said shaft a,

so as to bear against the underside of the dome casting, means for securing said crossbar on said shaft, a tool arm rotatably mounted on said shaft and slidable thereon for adjustment in a vertical plane. means for securing the adjustment of said arm. and means mounted in said frame for actuating said arm.

4. A device of the character specified, comprising a frame. a shaft centrally mounted in said frame. the lower end of said shaft being adapted to extend into the dome of a tank. standards on said frame whereby the same may be sumiorted on said dome, means carried by said standards for levelling said frame with respect to said dome. a cross-bar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said cross-bar on said shaft, a tool arm rotatably mounted on said shaft and slidable thereon for adjustment in a vertical plane, means for securing the adjustment of said arm, and means mounted in said frame for actuating said arm.

5. A device of the character specified, comprising a frame. a shaft centrally mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, a cross-bar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said cross-bar on said shaft. a tool arm rotatably mounted on said shaft. a tool adjustably mounted in said arm so as to operate on the gasket seat of said dome, means mounted in said frame for actuating said arm. and means for automatically adjusting said tool in said arm during operation.

6. A device of the character specified, comprising a frame. a shaft centrally mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, means carried by said standards for levelling said frame with respect to said dome, a crossbar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said crossbar on ltlt said shaft, a tool arm rotatably mounted on said shaft, a tool adjustably mounted in said arm so as to operate on the gasket seat of said dome, means mounted in said frame for actuating said arm, and means for automatically adjusting said tool in said arm during operation.

'5. A device of the character specified, comprising a frame, a shaft centrally mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, means carried by said standards for levelling said frame with respect to said dome, a cross-bar arranged to be assembled on said shaft so as to bear against the underside of the dome casting, means for securing said cross-bar on said shaft, a tool arm rotatably mounted on said shaft and slidable thereon for adjustment in a Vertical plane, means for securing the adjustment of said arm, a tool adjustably mounted in said arm so as to operate on the gasket seat of said dome, means mounted in said frame for actuating said arm, and means for automatically adjusting said tool in said arm during operation.

8. A device of the character specified, comprising a frame, a shaft centrally mounted in. said frame, the lower end of said shaft being; adapted to extend into the dome of a tank, standards on said frame whereby the same may be supported on said dome, means carried by said standards for levelling said frame with respect to said dome, a cross-bar arr; lured to be assembled on said shaft so as to bear against the underside of the dome casti means for securing said cross-bar on said shaft, a tool arm rotatably mounted on said shaft and. slidable thereon for ad justmentin a vertical plane, means for securing the adjustment of said arm, a spindle mounted in said frame and arranged to be driven by a pigirtable source of power, and means whereby said spindle is arranged to actuate said arm.

9. A device of the character specified,co1n- "iing a frame, a shaft mounted in said frame, the lower end of said shaft being adapted to extend into the dome of a tank, standards on said fran'ie whereby the same may be supported on said dome, means carried by said. si'ani'lards for levelling said frame with respect to said dome, means on said shaft for securing said frame to said dome, a tool arm rotatably mounted on said shaft and slidable thereon for adjustment in a vertical plane, means for securing the adjustment of said arm, a tool adjustably li"i( lii'9 l in said arm so as to operate on the gasket seat of said dome, a spindle mounted in said frame and arranged to be driven by a portable source of power, means whereby said spindle arranged to actuate said arm, and. means for auton'iatically adjusting said tool in said arm during operation.

ILLIAM S. EDWARDS. 

